Scientists have discovered Yellowstone volcano “much bigger than originally estimated.”

Latest research report shows that as Yellowstone National Park “cushion” in the magma chamber is 2.5 times the original estimate. Scientists have discovered that Yellowstone volcanic cave about more than 90 km and 30 km wide, 2-15 km deep and underground.
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Yellowstone volcanic hot springs is that people “peek” one of the underground magma chamber windows.

According to foreign media reports, the scientists said, the U.S. super volcano in Yellowstone National Park is situated on a much larger volume than previously estimated.

Latest research report shows that as Yellowstone National Park “cushion” in the magma chamber is 2.5 times the original estimate. Scientists have discovered that Yellowstone volcanic cave about more than 90 km and 30 km wide, and 2-15 kilometers deep underground by 200-600 cubic kilometers of lava.

This report was prepared by the University of Utah Professor Smith led the research team to the American Geophysical Union (American Geophysical Union, AGU) Fall Meeting submission.

Professor Smith said that people have long considered the volcano below Yellowstone is larger than estimated, but this discovery is still “staggering.”

If the Yellowstone super volcano erupted today, will have disastrous consequences.

When to “wake up”?

Yellowstone super volcano last erupted in 640,000 years ago. At the time, it ejected ash covering the entire North America, but also affects the Earth’s climate.

Smith’s team used advanced equipment to measure the size of the volcano’s magma chamber; They measured the seismic data recorded in Yellowstone and the surrounding area, and measured the seismic wave data recorded these earthquakes occurred. By including the seismic waves in the lava and heat slower speed when the substance.

The volcanic magma chamber extends to the northeast corner of Yellowstone National Park than previously estimated distance, which constituted including lava and rocks.

Professor Smith pointed out that the findings do not mean greater Yellowstone volcano danger, but it does for the study of crater northeast of the region to provide more information.

He also added that the team is not clear under the sleeping volcano once again when awakening in the outbreak.

The idea that the Yellowstone volcano erupted about once every 70 years; may already have one of the big eruption.

But Professor Smith thinks the judge still need more data, because so far there were only three major Yellowstone volcano erupted, the first 210 million years ago, the second in 1.3 million years ago, the third time in 64 years before.

According to these three intervals inferred Yellowstone eruption eruption frequency is once every 70 years, but Smith believes it is not enough for the data.

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